A prototype of the Tesla Model 3 is on display in front of the factory during a media tour of the Tesla Gigafactory which will produce batteries for the electric carmaker in Sparks, Nevada. US factory data touched a 3-year top. Photo: Reuters

US factory activity hits 3-year peak as economy gains steam

A prototype of the Tesla Model 3 is on display in front of the factory during a media tour of the Tesla Gigafactory which will produce batteries for the electric carmaker in Sparks, Nevada. US factory data touched a 3-year top. Photo: Reuters